Spec. Heat/Latent Heat
True or False:
Objects with a low heat capacity will change temperature easily when heated.
TRUE
This quantity describes the way that a force is distributed over a surface area
Pressure
When does an object experience its maximum buoyant force?
Full submerged
What does the "n" represent in the Ideal Gas Law?
The number of molecules in the gas
If 25% of the Sun's energy was absorbed by Earth rather than being reflected, what would its Albedo be?
0.75 or 75%
The specific heat capacity of water is 4,180 J/kg*C
How much will the temperature of water change during the transition from solid to liquid?
ZERO DEGREES
What are the SI units of density?
kg/m3
Archimedes said that the buoyant force on an object is equal to the weight of ______________
water displaced by the object
If all else remains constant, when the volume of an ideal gas is increased, what happens to the pressure?
Pressure decreases
Which of gas contributes most to the greenhouse effect?
CO2
This quantity describes the amount of heat necessary to change from liquid to gas.
Latent Heat of Vaporization
In order for an object to sink in a fluid, its density must be greater than _____________
How much of an object needs to be submerged in order for it to float in a fluid with twice the density of the object?
Half
One of the assumptions that we make about an ideal gas is that all of the collisions between gas molecules are perfectly ___________
elastic
This effect is a result of certain wavelengths of light being trapped by our atmosphere.
The Greenhouse effect
How much heat energy will be required to melt 1.0 kg of copper?
207,000 J
How many kilograms of air are in one cubic meter of this room?
1.2 kg
What volume of water is displaced when a 2.5 billion Newton container ship floats on by?
250,000 m3
A sealed, rigid container holds an ideal gas at a pressure of 200 kPa and a temperature of 27 °C. If the gas is heated to 127 °C, what is the new pressure in kPa?
270 kPa
This quantity describes total amount of energy that Earth receives from the Sun.
Solar Constant
If 1.0 kg of iron is put on a stove, how much will its temperature change while 36,000 J of energy are added to it?
80 K
If Mueller's 220 lb body is evenly distributed across all 1,800 nails, what is the minimum surface area of each nail that would prevent his skin from being punctured?
0.001 in2
What will be the net force on a 5.0 kg bowling ball when it is entirely submerged in water?
about 5 N up
What is the volume occupied by 2.0 moles of an ideal gas at a pressure of 507 kPa and a temperature of 300 K?
9.8 x 10-3 m
A steel rail on a railroad track is 20.0 meters long on a cool morning when the temperature is 283K How many centimeters longer will it be when it reaches a maximum temperature of 323K?
0.88 cm